Note: Make sure your vehicle has a blind spot detection system installed. 1.This product is an acceory and has no blind spot detection function. This acceory needs to be used with the blind spot detection system.If the original car does not have a blind spot detection system, it cannot be used together. 2.Installation location: It is generally installed on the A-pillar. Features (after installation): The radar transmits signals to the lights, there are two states, 1 is LED On (Constant) , 2 is LED Flash+Buzzer On. Level 1 alarm: the reminder light is always on. Level 2 alarm: the warning light flashes+the buzzer sounds. Normal state of equipment: 1) After the equipment is powered on, the left and right indicator lights flash 3 times respectively. 2) When the car speed exceeds 15km/h and there is a target car in the blind area, the indicator light is on, and the steering buzzer sounds and the indicator light flashes. Specifications: Note: The warning light is an acceory for the blind zone monitoring system. The alarm alert is generated based on the signal transmitted by the radar sensor (this product does not contain radar), so your car needs to have a blind zone monitoring system in order to achieve the function of the warning light. Item name: Universal Blind Spot Detection System Warning Light Features: Built in Buzzer Type: BSD Acceorie State: 1 is LED On (Constant) , 2 is LED Flash+Buzzer On (after installation). Support operating voltage: 5V (The 5V lamp cannot be directly connected to the 12V voltage. If it is directly connected to the 12V voltage, it is easy to burn the lamp). Working temperature: - 25 to +75/-13 to 167 Item weight: about 40g Quantity: 2 The package: 2Pcs*Blind spot detection system warning light Only 2Pcs Blind spot detection system warning light, does not contain any other products. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 10-30mm.